# Grayscale Image

Remove colour while retaining luminance.

[Open this tool](https://whatson.pk/image-grayscale-tool/)

Category: Image Preparation

Removing colour changes how some labels and subjects can be distinguished.

Inspect tonal separation after conversion, especially where different colours have similar brightness.

## Inputs and controls

* One image or a batch: JPEG; PNG; WebP. Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. At most six source images.
* Download format: PNG, preserves alpha; JPEG, flattens alpha; WebP, server support needed
* Quality. Allowed range: 1 to 100

## How to use

* Choose a static JPEG, PNG or WebP source. Check the displayed upload limits before processing.

* Set Download format and Quality. Review the selected units and options before preparing the output.

* Select Prepare image. Inspect the resulting preview, dimensions and file size, then download the output you need.


## Why use this tool

The grayscale output keeps shades rather than reducing every pixel to pure black or white.


## Before relying on the result

Compare the finished picture with its source. Grayscale retains intermediate tones. Thresholding uses only black and white.

## Questions

### Is grayscale the same as thresholding?

No. Grayscale retains intermediate tones. Thresholding uses only black and white.

### What should I check before using Grayscale Image?

Prepare a supported source image and check Download format and Quality. Use the exact units shown beside the controls and replace any example values with your own inputs.

Source page last modified (UTC): 2026-10-04T18:22:34+00:00

This profile describes the tool. It does not execute it or supply a professional certification.